San Carlos Reservoir at Coolidge Dam water level

Name: San Carlos Reservoir at Coolidge Dam water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

Reservoir, San Carlos Reservoir, Arizona, United States

Directions

Below flood stage

Water level

2,420.56ft Steady over the last 24 hours

Measured Oct 16, 2026, 08:30 AM MST (4 days ago)

Water stored: 38,660 acre‑ft

History

Not enough readings for a chart yet. History builds up with every update.

What this means

The lake level at San Carlos Reservoir at Coolidge Dam reads 2,420.56 ft, about where it usually sits at this time of year.

It is 94.44 ft below the flood stage of 2,515.00 ft.

It has barely moved over the past 24 hours.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 2,521.36 ftJanuary 25, 1993

Boating and fishing at San Carlos Reservoir at Coolidge Dam

A lake in its usual range is what most ramps, docks and swimming areas are built for.

Conditions at the shore change with the level, so check with the agency that runs the lake before a trip.

What happens at each level

2,533.00 ft: Coolidge Dam is overtopped. Flows of over 120000 cubic feet per second will cause massive bank erosion and damage near Winkleman.
2,526.00 ft: Homes threatened on the southeast side of winkleman. Resulting backup of san pedro river threatens numerous homes near dudleyville.
2,523.00 ft: Highway 77 bridge approaches overtopped.
2,521.00 ft: Water begins to backup into the San Pedro River towards Dudleyville.
2,518.00 ft: Highway 77 bridge abutments are threatened due to debris and bank erosion.
2,515.00 ft: Winkleman flats and other parks near the river are flooded.
2,511.00 ft: Precautionary evacuations in the RV Park in Winkleman Flats.
2,420.56 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Rank	Level	Date
1	2,521.36 ft	January 25, 1993
2	2,520.30 ft	February 28, 1980
3	2,514.60 ft	March 18, 1985
4	2,514.10 ft	October 7, 1983

Weather at the gauge

No rain in the last 3 days.

18 Sun 82° 53° – Wind 12 mph

19 Mon 75° 61° 1.28 in, 27% Wind 10 mph

20 Tue 83° 61° – Wind 7 mph

21 Wed 81° 65° 0.28 in, 52% Wind 7 mph

22 Thu 79° 63° 0.43 in, 79% Wind 17 mph

23 Fri 75° 62° – Wind 10 mph

24 Sat 78° 60° – Wind 5 mph

Forecast: Open-Meteo

Sunrise 06:31 AM Sunset 05:44 PM Daylight 11 hr, 13 min First quarter 66%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Gila River below Coolidge DamRiver gauge, Gila River	60.5 cfs	Normal	±0	0.5 mi
San Carlos River near PeridotRiver gauge, San Carlos River	3.05 ft	Below flood stage	+0.20 ft	9 mi
Gila River at CalvaRiver gauge, Gila River	2.57 ft	Below flood stage	−0.07 ft	18 mi
Aravaipa Creek near MammothRiver gauge, Aravaipa Creek	0.32 ft	Below flood stage	+0.03 ft	24 mi
Gila River at KelvinRiver gauge, Gila River	7.31 ft	Below flood stage	+0.01 ft	26 mi
Pinto Creek above Haunted Canyon near MiamiRiver gauge, Pinto Creek	0.4 cfs	High	±0	32 mi
Pinto Creek below Haunted Canyon near MiamiRiver gauge, Pinto Creek	1.4 cfs	Very high	±0	32 mi
Pinto Creek near MiamiRiver gauge, Pinto Creek	0.0 cfs	Low	−0.4 cfs	35 mi

Questions and answers

What is the water level of San Carlos Reservoir at Coolidge Dam today?

On Oct 16, 2026, 08:30 AM MST, the water level was 2,420.56 ft. Steady over the last 24 hours.

Is San Carlos Reservoir at Coolidge Dam rising or falling?

Steady over the last 24 hours.

Is the level of San Carlos Reservoir at Coolidge Dam normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at San Carlos Reservoir at Coolidge Dam?

The highest level on record is 2,521.36 ft on January 25, 1993.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:09469000 (Agency page)
Coordinates: 33.17534, -110.52802 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	2,420.56 ft	2026-10-16 15:30	Provisional
Water stored	38,660 acre‑ft	2026-10-20 05:30	Provisional

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How to cite

U.S. Geological Survey: San Carlos Reservoir at Coolidge Dam (usgs:09469000). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/arizona/san-carlos-reservoir-at-coolidge-dam

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer